Crystal growth and luminescence properties of Ti-doped LiAlO2 for neutron scintillator

Jan Pejchal, Yutaka Fujimoto, Valery Chani, Federico Moretti, Takayuki Yanagida, Martin Nikl, Yuui Yokota, Alena Beitlerova, Anna Vedda, Akira Yoshikawa

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

To develop new and efficient neutron scintillator, Ti-doped LiAlO 2 single crystal was grown by micro-pulling-down method. The photoluminescence characteristics including emission spectra, excitation spectra, and decay curves were measured. This material exhibits relatively high light yield, which exceeds that of the Li-glass standard neutron scintillator. There can be a possibility to further increase the efficiency by increasing the dopant concentration. The Ti4 charge transfer luminescence was found to be the leading luminescence process with 2.5 μs decay time.

Original languageEnglish
Pages (from-to)828-832
Number of pages5
JournalJournal of Crystal Growth
Volume318
Issue number1
DOIs
Publication statusPublished - 2011 Mar 1

Keywords

  • A1. Ti-doping
  • A2. Micro-pulling-down
  • B1. Lithium aluminate
  • B2. Neutron scintillator

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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